Pulsing and non-pulsing ULXs: the iceberg emerges
نویسندگان
چکیده
منابع مشابه
Non-normality can Facilitate Pulsing in Biomolecular Feedforward Loops
Non-normality can underlie pulse dynamics in many engineering contexts. However, its role in pulses generated in biomolecular contexts is generally unclear. Here, we address this issue using the mathematical tools of linear algebra and systems theory on simple computational models of biomolecular circuits. We find that nonnormality is present in standard models of feedforward loops. We used a g...
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States first emerged in several famous locations around the world: Egypt, Mesopotamia, Indus, Central America, and China. These are often labeled by anthropologists as the “pristine states,” with all states that later emerged by contact and emulation labeled “secondary states.” Contrary to what is often thought however, states did not rise in a smooth trajectory toward some peak of power. Inste...
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Weak, pulsing electromagnetic fields can modify biological processes. The hypothesis that responses to such induced currents depend on pulse characteristics was evaluated by using transcription as the target process. Two pulses in clinical use, the repetitive single pulse and the repetitive pulse train, were tested. These pulses produced different results from each other and from controls when ...
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Transcriptional pulsing has been observed in both prokaryotes and eukaryotes and plays a crucial role in cell-to-cell variability of protein and mRNA numbers. An important issue is how the time constants associated with episodes of transcriptional bursting and mRNA and protein degradation rates lead to different cellular mRNA and protein distributions, starting from the transient regime leading...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2020
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/staa930